Failing to package: Error: begin: stack for UAT

Hello Samakin,

I did a google search for “LogWindows: Error: Assertion failed: OutputPin->LinkedTo.Num() > 0 [File:D:\build++UE5\Sync\Engine\Source\Editor\KismetCompiler\Private\KismetCompiler.cpp] [Line: 323]” and came across this thread.

I see your log mentions the ‘GoodSky’ plugin as well. Do you have that plugin enabled? (According to that thread you may need to manually delete the GoodSky assets)

If that does not resolve it, I’d try opening all your Blueprints and making sure they compile.

Welcome to the forums, let us know if either of those solves it for you!